Comparison

Fun Calorie Tracker vs BoulderBuilder

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fun Calorie Tracker

This app makes healthy eating and exercise feel like a game with a virtual dragon companion. It offers AI meal scanning, personalized workout plans, and a unique way to track progress by collecting virtual items.

Highlights
  • AI meal scanner
  • Personalized workout plans
  • Gamified progress tracking
  • Collectible sticker maps
  • Recipe inspiration
Features
Read full description

Luko makes healthy eating and working out feels like play Luko is a tiny dragon with a big heart, with an AI meal scanner and personalized workouts. Watch your progress turn into something you can actually see, collect, and come back to tomorrow. PERSONAL TRAINER IN YOUR POCKET No generic workout library. No digging through hundreds of routines. Luko learns your goals, fitness level, available equipment, schedule, and the kinds of training you actually enjoy — then curates a personalized training plan around you. Each day, Luko turns that plan into a workout built for where you are now. It’s 100% personalized training just for you — not just another list of exercises. LOG MEALS IN SECONDS Snap a photo, describe what you ate, or type it in. Luko estimates calories and macros. Need inspiration? Find recipe ideas with Luko when you’re not sure what to eat next. TURN HEALTHY DAYS INTO A COLLECTION Luko is built to make progress feel visible. Log meals and complete workouts to unlock animal companions across collectible sticker maps. Instead of watching another chart go up and down, you’re building a little world out of the habits you keep. And yes, Luko will be there for it. A BUDDY, NOT A MEDICAL DEVICE Calorie, macro, and workout estimates are for general wellness purposes and may not be exact. Luko is not a medical device and does not replace professional medical advice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

BoulderBuilder

Log climbing sessions with detailed context like grade, result, and movement styles. Visualize your climbing performance with progress pyramids to identify strengths, weaknesses, and training priorities. Track your progress over time with style breakdowns and grade trends.

Highlights
  • Log climbs with grade, result, and notes
  • Build performance pyramids by grade
  • Track progress over time
  • Customize grade systems
  • Private by design, data stays on device
  • Career-wide V-scale view
Features
Read full description

BoulderBuilder turns your climbing log into performance pyramids that make strengths, gaps, and progress easier to see. Keep the details from today's session and give your next one a clear goal. LOG CLIMBS WITH CONTEXT Record grades, results, attempts, dates, notes, and movement styles. Use quick session logging at the wall or add the details afterward. Track bouldering with V-grades or custom colors and grade ranges that match your gym. SEE YOUR PYRAMID GROW Build a pyramid for each gym and a career-wide view. Follow your activity, revisit session history, and set climbing goals. Archive a gym while keeping its history, then restore it when you return. START FREE Explore without an account. Free includes 20 logged climbs and one active gym, plus bouldering pyramids, activity, sessions, and goals. New setup climbs do not count toward the 20-climb allowance. Existing saved history remains available when you reach a limit or your subscription ends. CLIMB WITH FRIENDS Sign in with Apple and create a profile to use Friends. After your profile is approved, find friends by username or share an invite link or QR code. Accepted friends can see your approved posts and photos, like and comment, and send private climb challenges. Friends, comments, likes, and challenges are free; posting climb photos requires Pro. Profiles and shared posts, comments, and challenge descriptions are reviewed before others can see them. Your climbing log is not shared automatically: choose the climb details and photos to upload, with gym names optional. Report content, block users, or remove a friendship in the app. GO FURTHER WITH BOULDERBUILDER PRO • Unlimited logged climbs and active gyms. • Rope climbing alongside bouldering, with YDS and French grades. • Projects with attempt history, beta notes, and photos to revisit next session. • Career progression, send rate, flash rate, and climbing-style insights. • Grade Progress, weekly pyramid targets, climbing streaks, and weekly recaps. • Climb and progress share cards, plus photo posts for accepted friends. • Optional Apple Health sync for climbing workouts and estimated energy burned. • Optional weekly check-in reminders. Saved project history and existing photos remain readable if Pro expires. New project attempts, beta notes, and photos require Pro. YOUR LOG, YOUR CHOICE Your personal climbing log and unshared photos are stored on your device. Friends uses an online service for the profiles and content you choose to share. Optional Face ID or Touch ID helps protect access to the app. Account and data deletion is available in Settings. BoulderBuilder Pro offers monthly and yearly auto-renewing subscriptions. Manage or cancel your subscription in Apple Account settings. Terms of Use: https://nimuh.github.io/BoulderBuilder/terms Privacy Policy: https://nimuh.github.io/BoulderBuilder/privacy

Screenshots

Fun Calorie Tracker4 screens
BoulderBuilder4 screens

Verdict

The call

The clearest difference is ads: Fun Calorie Tracker at none against BoulderBuilder's shown. Fun Calorie Tracker also leads on update cadence (every 3 days vs every 8 days). On price, rating, ratings volume and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fun Calorie Tracker sells 3 in-app purchases, starting at $9.99 per month and BoulderBuilder sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Fun Calorie Tracker against 5.0 for BoulderBuilder. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Fun Calorie Tracker ships an update every 3 days, BoulderBuilder every 8 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Fun Calorie Tracker versus BoulderBuilder: the parameters behind the verdict, then further details
ParameterFun Calorie TrackerBoulderBuilder
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
Update frequencyEvery 3 days — betterEvery 8 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size190 MB28 MB
Age rating12+4+
DeveloperZentari Labs IncKEYAN AZBIJARI

Customer experience

Fun Calorie Tracker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

BoulderBuilder

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Fun Calorie Tracker

Subscriptions3
  • Luko Gold Monthly2 variants$9.991 Month
  • Luko Gold3 Days trial$34.991 Year
  • Luko Gold3 Days trial$49.991 Year
2 purchases

BoulderBuilder

Subscriptions2
  • BoulderBuilder Pro Monthly$9.991 Month
  • BoulderBuilder Pro Yearly$49.991 Year

Questions

Is Fun Calorie Tracker free?
Fun Calorie Tracker is free to download, with in-app purchases available.
Is BoulderBuilder free?
BoulderBuilder is free to download, with in-app purchases available.
Which has better reviews, Fun Calorie Tracker or BoulderBuilder?
Fun Calorie Tracker and BoulderBuilder are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Fun Calorie Tracker or BoulderBuilder have ads?
BoulderBuilder shows ads; Fun Calorie Tracker does not.
Which is updated more often, Fun Calorie Tracker or BoulderBuilder?
Fun Calorie Tracker ships an update every 3 days, and BoulderBuilder every 8 days. Most recently, Fun Calorie Tracker was updated on October 28, 2026 and BoulderBuilder on October 29, 2026.

Other comparisons